vice president joe biden said violence has no part in a democratic society. i spoke to steven rosenberg. >> are the ukrainian authorities using different tactics? >> certainly today we saw far more police in the center of kiev than we did yesterday, particularly in the government district a short distance from independence square here. what they were doing was trying to push gradually the protestors away from key government buildings. now on the square here, independence square, we haven't seen any police today. but the authorities have made it clear they would like protestors to leave this square. >> is there any sign at all of an end to this stand-off between the government and the protestors? >> no sign at the moment. these protestors say they are determined to remain here in the center of kiev. opposition leaders have shown they are capable of bringing on to the streets of kiev huge crowds, hundreds of thousands. they came here and gathered on the square on sunday. and yet they have been unable to force concessions from the government. on the other hand,